A horizontal axisymmetric jet of air with 1.25 cm diameter strikes a stationary vertical disk a 20 cm disk. The jet speed is 70 m/s at the nozzle exit. A manometer is connected to the center of the disk. Calculate (a) the deflection h, if the manometer liquid has SG

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?